Question: What is {based on} and the {named after} of {Watt} ?
Paraphrase: What unit of power is named after James Watt, and what is it based on?
SPARQL (Wikidata): SELECT ?ans_1 ?ans_2 WHERE { wd:Q25236 wdt:P144 ?ans_1 . wd:Q25236 wdt:P138 ?ans_2 }
Answer: James Watt, second, James Watt, joule